baber/WOPTO huggingface dataset:
Patent GB-316058-A (GB)
Title: Improvements in water tube boilers
IPC: F22B21/14
Filed: 1928-10-12
Abstract: 316,058. Yarrow, H. E. Oct. 12,1928: Water-tube boilers.-A Yarrow boiler having a superheater J beyond one of the banks of water tubes K is fired by a range of burners K so fitted in the furnace wall below the drum C on the same side of the boiler as the superheater that the flame is directed towards the other side of the furnace and away from the superheater.
Patent GB-396035-A (GB)
Title: Improvements in or relating to friction clutches particularly for motor vehicles
IPC: F16D13/71
Filed: 1931-10-23
Abstract: 396,035. Friction clutches. FIAT SOC. ANON., 250, Via Nizza, Turin, Italy. Oct. 23, 1931, No. 29493. Convention date, Oct. 30, 1930. Void [Published under Sect. 91 of the Acts]. [Class 80 (ii).] In order to reduce play and wear between the declutching-levers 9 and presser-ring 7 of a motor-vehicle &c. clutch, the operative end 9<1> of each lever is shaped to be in constant engagement with both walls of a housing in the ring. These housings are formed by radial slots 13 in projecting parts 14 of the ring 7 and by metal cover-plates 15, which engage apertures 17 in a steel-plate disc 8 secured to the flywheel 1 and so serve as driving-keys for the ring. The invention is applicable to clutches other than the single-driven-plate type shown.
Patent GB-717651-A (GB)
Title: Improvements in or relating to directional radio systems
Filed: 1952-11-21
Abstract: 717,651. Radio-navigation ; pulsing carrier frequencies. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Nov. 21, 1952 [Nov. 27, 1951], No. 29528/52. Classes 40 (5) and 40 (7) In an axis defining or bearing determining overlapping beam directional radio system two overlapping polar diagrams are produced alternately and their relative amplitudes varied in accordance with a periodic law to vary the direction of the equi-signal line. There is shown in Fig. 2 two equi-intensity overlapping patterns L12, L22 defining the line OX (0) if these are varied in amplitude in opposite directions patterns such as L11, L21 and L13, L23 are produced defining lines #, X) # 1 ) and # 3  X ( #3 ) respectively. The amplitude variations may be made according to a sawtooth or triangular law, switching between the two patterns being performed at a frequency considerably greater than the amplitude variation frequency. In a transmitter arrangement according to the invention radiators 5, 6, producing overlapping diverging patterns are fed through waveguides 3 and 4, modulating means 1 and 2, and guides 3' and 4<SP>1</SP> from transmitter 8. The modulation means 1 and 2 are controlled over lines b1, al and b2, a2 from the modulation generator 7. Transmitter 8 may supply either continuous or pulsed wave energy to the system and in the latter case the pulse generation is preferably synchronized with the modulation by the connection c, d. A receiver arrangement according to the invention, Fig. 12 (not shown) may have a similar overlapping lobe aerial system and similar arrangements for modulating signals passing along the separate receiving channels. The signals at the end of each channel are detected and a vertical deflecting signal applied to the indicating cathode by a comparison circuit when the detected signals are of equal amplitude. The cathode-ray tube is scanned horizontally in accordance with the angular scan of the equisignal line by synchronizing the time base with the variation of the detected voltages. If transmitter and receiver systems according to the invention are working together the transmitted signal may have a supplementary modulation which serves to synchronize the indicator time base at the receiver. A suitable amplitude modulation device for insertion between the guides 3' and 3 and 4<SP>1</SP> and 4, Fig. 4, comprises an attenuation control consisting of a magnetron Mo associated with a branch guide 3a. The magnetic field and voltage applied to the cathode K are such as never to permit the magnetron to oscillate and the arrangement forms a passive impedance with respect to the guide the valve of which is a function of the voltage applied at a1. The circuit of a device for modulating two trains of pulses, one of which is the inverse of the other by voltages periodically varying in opposite sense in accordance with a sawtooth law to form the composite voltages for application to the magnetron cathodes is described with references to Figs. 7, 8 and 9 (not shown).
Patent GB-1310417-A (GB)
Title: Gear trains
IPC: F16H1/46
Filed: 1970-06-18
Abstract: 1310417 Toothed gearing SKODA NARODN1 PODNIK 18 June 1970 [19 June 1969] 29597/70 Heading F2Q In a gear train having a gear-wheel 6<SP>11</SP> formed of two parts 6<SP>11</SP>a and 6<SP>11</SP>b having oppositely inclined oblique teeth which are meshed by three two-part pinions 3<SP>11</SP>a and 3<SP>11</SP>b, the two parts 6<SP>11</SP>a and 6<SP>11</SP>b are connected respectively to a torsion shaft 7 and a torsion tube 8 having their ends secured to a hub 11 of a toothed coupling 17 attached to a shaft 14. The two-part pinions 3<SP>11</SP>a and 3<SP>11</SP>b are secured to shafts 16 which carry pinions 3<SP>1</SP> which mesh a gear-wheel 2<SP>1</SP> on a shaft 13. In a modification, the torsion shaft 7 and torsion tube 8 are interconnected by a toothed coupling at their outer ends. In another modification, an internally toothed gear 6<SP>11</SP> is connected to shaft 14 and meshes pinions 3<SP>11</SP>, Fig. 3. An epicyclic gear arrangement is shown in Fig. 4.
Patent GB-447873-A (GB)
Title: Shoes
IPC: A43C7/02
Filed: 1935-10-26
Abstract: 447,873. Shoes; lacing - fastenings. TYRRELL, W. C., 7, Hughson Street South, Hamilton, Ontario, Canada. Oct. 26, 1935, No. 29606. Convention date, Nov. 8, 1934. [Classes 17 (ii) and 43] A pocket 3 with its mouth at the upper edge of the upper 1 is formed between the shoe upper 1 and its lining 4 to receive the shoe lace 6 through a slit or orifice 5 formed in the inner wall. The lace, which has a tab at one end, is threaded first through the opposed eyelets 9, then the eyelets 9<a>, then through the top eyelets 9<b> to the eyelets 9<c> and finally to the eyelets 9<d> from which the end is drawn tight and passed through the slit 5 in the inner wall of the pocket near the front, into the pocket.
Patent GB-1237751-A (GB)
Title: Metanilic acid
Inventor: FERRARI GIANFRANCO
Filed: 1968-06-21
Abstract: 1,237,751. Metanilic acid. MONTECATINI EDISON S.p.A. 21 June, 1968 [28 June, 1967], No. 29648/68. Heading C2C. In the manufacture of metanilic acid by the catalytic hydrogenation of aqueous solutions of sodium or calcium m-nitrobenzene sulphonate (preferably obtained by sulphonation of mnitrobenzene and subsequent neutralization), the life of the catalyst is prolonged by pretreating the solution first with a reducing agent in a proportion not exceeding 2% by weight of nitrobenzene sulphonate and then (after filtration) with an oxidizing agent in a proportion not exceeding 3% by weight of nitrobenzene sulphonate. Specified reducing agents are sulphur dioxide, sulphites, metal-acid mixtures and hydrogen in the presence of a catalyst. Specified oxidizing agents are hydrogen peroxide, oxygen, nitric acid and chlorine. Comparative examples are given.
Patent GB-465154-A (GB)
Title: Improved manufacture of ceramic products
IPC: C04B33/02
Filed: 1935-10-28
Abstract: Non-porous ceramic products are obtained by firing a mass consisting wholly or principally of ground pumice at temperatures up to sintering point, i.e. not substantially exceeding 900 DEG  C. Liparite is preferably used.  The mass may contain also ground clay, silica (e.g. quartzite) or silicon carbide, and is shaped with the aid of water and burnt, e.g. in an ordinary brick-kiln. The product may be made into street pavings, acid-resistant receptacles, water-proof linings and, with resins or ceramic blinders, grindstones; it may also be ground and used as an abrasive; it is a good dielectric.ALSO:Non-porous ceramic products are obtained by firing a mass consisting wholly or principally of ground pumice at temperatures up to sintering point, i.e. not substantially exceeding 900 DEG  C. Liparite is preferably used.  The mass may contain also ground clay, silica (e.g. quartzite) or silicon carbide, and is shaped with the aid of water and burnt, e.g. in an ordinary brick-kiln. The product may be made into street paving, acid-resistant receptacles, waterproof linings and, with resins or ceramic binders, grindstones; it may also be ground and used as an abrasive; it is a good dielectric.
Patent GB-777242-A (GB)
Title: Improvements in or relating to power supply circuits suitable for electronic discharge devices fed by rectified alternating current
IPC: H04B15/00
Filed: 1952-11-25
Abstract: 777,242. Automatic D.C. smoothing control systems. PERKINS, L. Jan. 4, 1954 [Nov. 25, 1952], No. 29798/52. Classes 38 (2) and 38 (4). A load 12, Fig. 6, is supplied in series with an inductance 11 from a rectified A.C. source connected to terminals 10 and ripple voltage across the load is reduced in negative feedback manner by applying it to an amplifier A, the output of which is applied to a valve 13 having load 12 in its cathode circuit. Further reduction of ripple is obtained by applying the ripple voltage across a secondary winding 17 of inductance 11 to the grid circuit of valve 13, the anode circuit or which is also coupled in negative feedback manner through a transformer 18 to load 12. A resistance-capacity network 15, 16 provides the necessary quadrature phase shift for utilization of the ripple voltage across the inductance. Modifications are described involving only one of the ripple reducing circuits of Fig. 6 in which direct coupling may replace transformers 17 and 18. Typical circuits involving a one or two valve amplifier A are shown with component valves.
Patent GB-810242-A (GB)
Title: Viscosimeters
IPC: G01N11/14
Filed: 1956-10-01
Abstract: 810,242. Photo-electric measuring systems. EISENBERG, H. Oct. 1, 1956 [Oct. 31, 1955], No. 29831/56. Class 40 (3). [Also in Groups XIX and XXXVIII] A torsion viscosimeter comprises a rotary body 7 for immersion in the fluid to be tested, suspended from a motor 17 by a torsionally elastic member 12; means for producing recurrent measurable physical phenomena during the rotation of the body comprising revolving members 14, 10 secured to the suspension above and below the elastic member 12 and stationary means 20, 22; 19, 21; cooperating with the revolving members 14, 10 and producing the phenomena in certain angular positions of the respective revolving members; and means for measuring any interval of time occurring between the phenomena produced by the parts above and below the elastic member 12. A body 7 rotates in a container 1 of the liquid whose viscosity is to be measured and is driven by a motor 17 through a reduction gear 18, a shaft 8a, a spiral spring 12, and a shaft 8. Discs 10 and 14 with slots 11 and 15 in their circumferences rotate with shafts 8 and 8a respectively. A lamp 19 projects a beam through lenses 19a and 21a on to a photoelectric cell 21 when the slit 11 is in alignment with the beam. Similarly, lamp 20 projects a beam on to a photo-electric cell 22 when slit 15 is in alignment with the beam. The interval between excitation of the cells 21 and 22 is measured electrically and this, in conjunction with the speed of the motor 17, gives a measure of the viscosity of the liquid in the container 1. Another embodiment is described in which one photo-electric cell only is used and the length of time excitation gives a measure of the lag and hence of the viscosity (see Group XXXVIII). Alternative embodiments described include the use of mirrors secured to the suspension; of contact members completing a circuit in one position of the suspension; of magnetic members producing current impulses by co-operation with stationarily arranged magnetic pickups; and of radio-active charges on the suspension co-operating with gas-discharge tubes to produce ionization in the tube.
Patent GB-304409-A (GB)
Title: Improvements in or relating to methods of and means for covering roofs, walls and similar structures
IPC: E04B2/70
Filed: 1927-11-08
Abstract: 304,409. Hurden, E., and Hurden, A. P. Nov. 8, 1927. Roofing and facing tile s.-Asbestos -cement and like cementitious boards are provided with flanges b on the longitudinal edges extending in opposite directions, and are laid horizontally. The boards may be ornamented or impressed with weatherboard or tile patterns, and may be coloured.
Patent GB-486587-A (GB)
Title: Process for producing superphosphate fertilizers and product thereof
IPC: C05B1/02
Filed: 1936-11-04
Abstract: In the production of phosphatic fertilizers, one or more batches of the rock-acid mixture are poured to form a block having a minimum dimension of two to five feet, each batch forms a layer from three inches to three feet thick and the block is maintained intact for at least two days after mixing or is broken into large pieces before cooling is complete and said pieces are left intact and so stored. By these means a temperature of 225 DEG  F. or above is developed in the block, and the latter when disintegrated forms porous pellets. Mixed fertilizers are obtained when substances such as sulphate or chloride of potash, kainit, sulphate of ammonia, ammonium nitrate, nitric acid, hair, tankage, leather scraps, or wool waste are added to the rock-acid mixture, such materials being added preferably late in the mixing operation. The blocks may be formed in rectangular open-ended containers, comprising members 35, 36, Fig. 13, hinged <PICT:0486587/III/1> <PICT:0486587/III/2> <PICT:0486587/III/3> the securing-pins, by inserting the T-shaped end of a lever 71 in an opening 73 in the member 75, and after the hinges have been opened slightly, the sides may be lifted clear of the block. Alternatively, as shown in Fig. 15, a long den may be subdivided by pairs of dividing walls 256 running in paired guideways 257. The den comprises four sections 241-244, and in each section the dividing walls decrease in height from the centre outwards, so that a mixing pan 253 stationed over any one section first fills the two middle compartments and then overflows into the remaining at 37, and held together by pins inserted in openings in angle members 74, 75, which are carried to and from a filling room on cars.  The filled containers are opened, after removing ones. When the blocks of any one section have solidified, the walls 256 are removed and air admitted between them by opening doors 258. As shown in Fig. 17, the walls are braced against pressure during the filling operation by toggles 282 attached to rods 283. Raising of the rods to remove the walls breaks the toggle and draws the walls towards each other.  When the walls have again been lowered into position, rods 286 carrying toggles 285 are raised, whereby the walls are again separated and the toggles 282 expanded.
Patent GB-1418552-A (GB)
Title: Semiconductor storage devices
IPC: G11C5/14
Filed: 1973-06-25
Abstract: 1418552 Semiconductor storage devices INTERNATIONAL BUSINESS MACHINES CORP 25 June 1973 [30 June 1972] 30040/73 Heading G4A A semiconductor storage device comprises a semiconductor chip (1, Fig. 1, not shown) containing first and second arrays (2, 3) of storage cells, addressing means (4, 5, 6) for designating corresponding memory cells in both arrays and array selection means (7) for selecting one of the arrays to which power is supplied. To select for example cell 8 (Fig. 2) of the first array an array select signal AS1 is generated to enable switches SW3, SW1 so that the signals from word decoder 4 (common to both arrays) and bit decoder 5 are passed toward line 10 and switches Q1, Q2. Switches Q3, Q4 are also enabled so that the contents of the cell may be read on to bit lines B1, B0 in dependence on the - value of the contents. Separate gating voltages VL1, VL2 are provided for the two arrays so that one may be disconnected by connection to ground if one array is faulty. If neither of the arrays in the chip contains any imperfections then inputs (Y0, Y1, Fig. 3, not shown) to the array decoder are connected to the low order bit of the chip address. If however one of the arrays is faulty the corresponding input (Y0 or Y1) is connected to ground.
Patent GB-809663-A (GB)
Title: Improvements relating to metal fencing posts
IPC: E04H17/06
Filed: 1956-10-03
Abstract: 809,663. Fencing. WOLSELEY ENGINEERING Ltd., and DRAKE, R. S. Oct. 3, 1957 [Oct. 3, 1956], No. 30078/56. Class 45. An electric fencing post 1 is bent adjacent the spiked end 2 to form a tread 4 which facilitates forcing the post into the ground. Specifications 682,715, [Group XXXVI], 700,479, 724,049, 742,414, 758,819, 758,832 and 787,671 [Group XXXVI] are referred to.
Patent GB-344778-A (GB)
Title: Improvements in or connected with pillion seats for motor cycles and the like
IPC: B62J1/14
Filed: 1929-10-04
Abstract: 344,778. Pillion seats. MOSELEY & SONS, Ltd., D. and COCKS, A. G., Chapel Field Works, Ardwick, Manchester. Oct. 4, 1929, No. 30087. [Class 136 (i).] Means for securing a pillion seat to a motor cycle &c. of the type not provided with a luggage-carrier comprises a pair of struts 14 rigidly or pivotally secured to the front part of the base of the seat 9, clips 15 adjustable along the struts, as by means of a series of holes 14a, and adapted to engage the rear stays 10 of the cycle, and means, such as bolts 15a, for clamping the clips in position on the struts and stays. The rear of the seat is secured to the mudguard 11 by means of clips 16, Figs. 1 and 3, which engage the edges of the mudguard and are mounted on bolts 17, provided with wing-nuts 17a and fitted in transverse slots 12a in the base 12 of the seat, so that the bolts may be adjusted transversely according to the width of the mudguard. The base 12 may be removably mounted in a pocket 9a formed in the casing of the seat cushion, as described in Specification 344,437, and the seat cushion may be hinged to the base in the manner described in Specification 344,438. The base terminates short of the rear end of the seat, and the rear portion of the bottom of the seat is flexible, so as to yield to the curvature of the mudguard. The base terminates short of the front end of the seat, in order to present a soft surface to the back of the driver on the saddle, the end of the seat being also concaved.
Patent GB-478612-A (GB)
Title: Improvements in machines for separating water from sand and like material
IPC: B01D21/24
Filed: 1936-11-05
Abstract: 478,612. Separating water from sand &c. HARDY & PADMORE, Ltd., and GUISE, C. Nov. 5, 1936, No. 30090. [Class 46] A machine for separating water from sand or like material comprises a bucket-wheel rotatably mounted over and within an opentopped settling tank so that the buckets scoop up the sand and deliver it to a shoot discharging to the side, the bucket arms being offset from the plane of rotation of the buckets to facilitate correct location of the shoot. As shown, a settling tank a of substantially semi-cylindrical form is provided with a vertical wall a<1> and an inclined wall a<2>, the walls supporting bearings d for the shaft e of a bucket-wheel g. The arms g<1> of the buckets are offset to facilitate the correct position of a shoot h beneath the upper buckets g<2>. In a modification, the settling tank is flat-bottomed, the bearings d are supported by an internal frame, and the bucket-wheel is of radially-grooved disc formation to permit insertion of extra arms if necessary. In a further construction the bucket-wheel is provided with buckets on both sides for discharge on to two shoots oppositely inclined. For treatment of relatively dirty material, for example, sand or gravel held in suspension in water issuing from a sand or gravel washing machine, any of the separating machines described above may be arranged to discharge into a washing trough of spiral-bladed conveyer type, which discharges into another separating machine, clear water passing through the washing trough from the second to the firstmentioned separating machine.
Patent GB-761633-A (GB)
Title: Pawl and ratchet mechanism for transforming mechanical vibrations into a rotary movement for actuating a watch or clock mechanism
IPC: F16H31/00
Filed: 1954-10-19
Abstract: 761,633. Clocks and watches. BULOVA WATCH CO., Inc. Oct. 19, 1954 [Oct. 23, 1953], No. 30116/54. Class 139. The ratchet wheel 1 of a timepiece mechanism is driven from a vibrating member 4 through a wire 5 connected at one end to the member 4 and at the other end to a coil spring 6 adjustably. connected to a frame member 8. A friction element 7 has a V- shaped groove which receives the wire 5 and a plastic layer 11 which tangentially engages the adjacent teeth of the ratchet 1. The arrangement is such that as the vibrating member 4 moves in the direction of the arrow A the element 7 steps on the ratchet in the direction of the arrow B. As the element 4, the wire 5 and the element 7 return in the direction of the arrow A' reverse rotation of the ratchet 1 is prevented by a plastic detent 12. Stops 9 and 10 determine the stroke of the element 7. In a modification the element 7 is fixed to the wire 5 which is connected to the vibrating member 4 through a coil spring. In another example, Fig. 4, a spring 16 acts on the element 7 with a force which increases as the element 7 moves to the left and decreases as the element 7 returns to the right. Specification. 761,609 is referred to.
Patent GB-706189-A (GB)
Title: Method for the production of ferromagnetic powders of high coercive force and of permanent magnets manufactured of such powders
IPC: C25C5/02
Filed: 1950-12-08
Abstract: 706,189. Magnet structures. BOHLER & CO. AKT.-GES., GEB. Dec. 8, 1950 (Dec. 10, 1949], No. 30128/50. Class 38 (2). [Also in Group XXXVI] Permanent magnets are made from powders of high coercive force which are produced by electro-deposition (see Group XXXVI) of ferromagnetic metals or alloys while the cathode is subjected to ultrasonic oscillations, for example, by piezoquartz generators. The deposited powder is precipitated into a protective liquid, for example, carbon tetrachloride, which prevents oxidation and is subsequently removed by suction and filtration and then compacted into magnets of desired shape, with or without a binder.
Patent GB-981241-A (GB)
Title: Process for the polymerization of compounds containing olefinic bonds
IPC: C08F10/00
Filed: 1961-08-21
Abstract: Copolymers of an olefin containing 2 to 4 carbon atoms, with a vinyl ester, an acrylic or methacrylic acid ester, vinyl chloride maleic anhydride, or vinyl carbazole, are made by effecting the copolymerization of the monomers in the presence as catalyst of a mixture of an organo-aluminium compound of the general formula <FORM:0981241/C3/1> in which X and Y represent hydrogen or a hydrocarbon radical, and Z a hydrocarbon radical, and a compound containing at least one peroxide group, wherein the ratio by weight of the aluminium compound to the peroxide is within the range of 100:1 to 100:50. The olefin may be ethylene, propylene, or isobutylene.  The other monomer may be vinyl acetate, propionate, butyrate, stearate, or benzoate, methyl, ethyl, propyl, butyl, or ethyl hexyl acrylate, or methyl or ethyl methacrylate. Suitable peroxides are dibenzoyl, diacetyl, dilauroyl, di-tert.-butyl, and acetone peroxide.  Cumene hydroperoxide and di-isopropyl percarbonate are also suitable. The polymerization may be effected in bulk or solvent such as hydrocarbons, esters such as methyl to butyl acetate, or ethyl and isopropyl propionate.  The preparation of the following copolymers are exemplified: (1) ethylene-vinyl acetate, (2) propylene-vinyl acetate, (3) propylene and butyl acrylate, (4) ethylene and methyl methacrylate, (5) isobutylene and vinyl acetate, and (6) ethylene and vinyl propionate.  Specification 578,992 is referred to.